Skip to main content
Log in

Polyploidisation of G2M phase cells separated from aerobically and anaerobically grown Ehrlich ascites tumor cells

  • Rapid Communication
  • Published:
Journal of Cancer Research and Clinical Oncology Aims and scope Submit manuscript

Summary

G2-enriched fractions of Ehrlich ascites tumor cells (up to 80%–85% G2 cells) separated from anaerobically and aerobically cultured asynchronous populations by centrifugal elutriation revealed the same growth characteristics after recultivation under standard conditions: a significant proportion of cells with increased DNA (DNA content>4C) emerged. Interruption of DNA synthesis by deprivation of oxygen may account for polyploidisation (over-replication) of DNA but other mechanisms must be taken into consideration.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

References

  1. Gekeler V, Stropp U, Probst H (1986) Application of hypoxia induced shut down of replicon initiation to the analysis of replication intermediates in Ehrlich ascites cells. Biol Chem Hoppe Seyler 367:1209–1217

    Google Scholar 

  2. Hurlbert B, Schmitz H, Brumm AF, Potter R van (1954) Nucleotide metabolism II. Chromatographic separation of acid soluble nucleotides. J Biol Chem 209:23–29

    Google Scholar 

  3. Kroll C (1985) Zellbiologische und Biochemische Untersuchungen über Polyploidisierung bei Ehrlich-Ascites-Tumorzellen. Thesis Marburg

  4. Kroll C, Kroll W, Schneider F (1987) Growth kinetics of the G2-phase of Ehrlich ascites tumor cells, separated from anaerobically treated asynchronous cultures. Z Naturforsch (in press)

  5. Lindahl PE (1956) On counter streaming contrifugation in the separation of cells and cell fragments. Biochim Biophys Acta 21:411–415

    Google Scholar 

  6. Löffler M (1980) On the role of dihydroorotate dehydrogenase in growth cessation of Ehrlich ascites tumor cells cultured under oxygen deficiency. Eur J Biochem 107:207–215

    Google Scholar 

  7. Löffler M, Schimpff-Weiland G, Follmann H (1983) Deoxycytidylate shortage is a cause of G1 arrest of ascites tumor cells under oxygen deficiency. FEBS Lett 156:72–76

    Google Scholar 

  8. Merz R, Schneider F (1982a) Growth characteristics of in vitro cultured Ehrlich ascites tumor cells under anaerobic conditions and after reaeration. Z Naturforsch 37c:326–334

    Google Scholar 

  9. Merz R, Schneider F (1982b) Growth characteristics of anaerobically treated Ehrlich ascites tumor cells after reaeration as studied by combination of flow cytometry and centrifugal elutriation. Z Naturforsch 37c:833–838

    Google Scholar 

  10. Merz R, Schneider F (1983) Growth characteristics of anaerobically treated early and late S-period of Ehrlich ascites tumor cells after reaeration. Z Naturforsch 38c:313–318

    Google Scholar 

  11. Probst H, Gekeler V, Helftenbein E (1984) Oxygen dependence of nuclear DNA replication in Ehrlich ascites cells. Exp Cell Res 154:327–341

    Google Scholar 

  12. Rice GC, Hoy C, Schimke RT (1986) Transient hypoxia enhances the frequency of dihydrofolate reductase gene amplification in chinese hamster ovary cells. Proc Natl Acad Sci USA 83:5978–5982

    Google Scholar 

  13. Schimke RT (1984) Gene amplification in cultured animal cells. Cell 37:705–713

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kroll, C., Schneider, F. Polyploidisation of G2M phase cells separated from aerobically and anaerobically grown Ehrlich ascites tumor cells. J Cancer Res Clin Oncol 113, 298–300 (1987). https://doi.org/10.1007/BF00396389

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00396389

Key words

Navigation